EP 0562498 B1 19960103 - Pump for thick materials with delivery cylinders, in particular two-cylinder pump for concrete
Title (en)
Pump for thick materials with delivery cylinders, in particular two-cylinder pump for concrete
Title (de)
Dickstoffpumpe mit Förderzylindern, insbesondere Zweizylinderbetonpumpe
Title (fr)
Pompe pour matières épaisses munie de cylindres refoulants, en particulier pompe à béton bi-cylindre
Publication
Application
Priority
DE 4209471 A 19920324
Abstract (en)
[origin: US5380174A] In a pump for thick matter with delivery cylinders (1, 2), in particular a two-cylinder concrete pump, which in order to control the flow of thick matter, incorporates a distributing regulator (11) that is connected permanently at an outlet opening (8) with the pump-side end (9) of a delivery line (7) and which incorporates at least one inlet opening (12) where it is sealed on the web (29) between the thick-matter flow passage openings (16, 17) from the delivery cylinders into a supply tank (6), the thick-matter flow passage openings (16, 17) and the inlet opening (12) of the distributing regulator (11) being of identical outline and area, the distributing regulator (11) connecting adjacent thick matter flow passage openings (16, 17) alternately with the delivery line (7) and the supply tank (6) by a rotating movement, the present invention provides for the fact that the thick-matter flow passage openings (16, 17) together with their associated delivery cylinder openings (22, 23) are each connected through a standoff pipe (24, 25), and the inside diameters of the flow passage openings (16, 17) that are formed by the standoff pipes (24, 25) are reduced on the web (29), the reduction in the diameter in the distributing regulator inlet opening (12) being matched to the web (29) (FIG. 1).
IPC 1-7
IPC 8 full level
F04B 15/02 (2006.01); F04B 7/00 (2006.01)
CPC (source: EP KR US)
F04B 1/02 (2013.01 - KR); F04B 7/0026 (2013.01 - EP US); Y10S 417/90 (2013.01 - EP US)
Citation (examination)
DE 4120466 A1 19920109 - PUTZMEISTER MASCHF [DE]
Designated contracting state (EPC)
AT BE DE ES FR GB GR IT
DOCDB simple family (publication)
US 5380174 A 19950110; AT E132580 T1 19960115; BR 9301287 A 19930928; CA 2092397 A1 19930925; CN 1033289 C 19961113; CN 1089691 A 19940720; DE 4209471 A1 19930930; DE 59301283 D1 19960215; EP 0562498 A1 19930929; EP 0562498 B1 19960103; ES 2089617 T3 19961001; GR 3019136 T3 19960531; JP H0642453 A 19940215; KR 100298499 B1 20020219; KR 930020016 A 19931019
DOCDB simple family (application)
US 3543193 A 19930324; AT 93104594 T 19930320; BR 9301287 A 19930324; CA 2092397 A 19930324; CN 93104594 A 19930324; DE 4209471 A 19920324; DE 59301283 T 19930320; EP 93104594 A 19930320; ES 93104594 T 19930320; GR 960400560 T 19960228; JP 6504493 A 19930324; KR 930004639 A 19930324